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2020 Silverado HD & Sierra HD Troubleshooting

A central location to report any issues or asking for help troubleshooting any problems with your 2020 Chevrolet Silverado 2500 / 3500 or 2020 GMC Sierra 2500 / 3500. Also recall announcements and Technical Service Bulletins (TSB).

195 topics in this forum

  1. 2020 Denali 3500 wont start

    By Duallyboy26,
    • 9 replies
    • 416 views

  3. Infotainment Screen Black When Using Remote Start 1 2 3

    By smiles,   
    • 34 replies
    • 2,531 views

  4. Highway speed vibration on 2020? 1 2 3 4 5

    By Ckhris,
    • 74 replies
    • 9,389 views

  5. Trailer lights 1 2 3 4

    By Jordan94,   
    • 54 replies
    • 12,769 views

  6. Power Steering Noise- started at 100 miles! 1 2

    By Limelight,
    • 15 replies
    • 1,889 views

  7. Brake pedal hard to push

    By gerald compton,
    • 14 replies
    • 656 views

  8. Guest trailer selected by default

    By LarryM,
    • 0 replies
    • 68 views

  9. 2020 2500 SLT DEAD 1 2

    By DNHMIKE,
    • 22 replies
    • 863 views

  10. Brakes Squeaking @ 10K

    By LarryM,
    • 12 replies
    • 302 views

  11. Leaking power steering fluid

    By RoadPirate,
    • 1 reply
    • 82 views

  12. Engine knock a 500 miles 1 2 3 4 9

    By bass mechanic,
    • 122 replies
    • 19,613 views

  13. Leaking rear window

    By redpat2061,
    • 0 replies
    • 91 views

  14. TPMS sensor Mhz

    By stoneys94,
    • 2 replies
    • 125 views

  15. HD TPMS

    By Dave mags,
    • 1 reply
    • 119 views

  16. Bed sheet metal tearing / welds popping - advice 1 2

    By MesaRat,
    • 24 replies
    • 1,505 views

  17. Noisy steering column 1 2

    By STGS,
    • 22 replies
    • 3,723 views

  18. Clunk in front end

    By Tahoe555,
    • 4 replies
    • 207 views

  19. 2020 2500HD Transmission issues 1 2 3

    By gpraceworks,
    • 31 replies
    • 8,035 views

  20. key fob transmitter faulty? 1 2

    By FirstAscent,
    • 15 replies
    • 1,317 views

  21. Alignment Issues Pulls to the Right 1 2

    By Lightenup,
    • 23 replies
    • 1,751 views

  22. grease fittings 1 2 3

    By Bigbucks10,
    • 40 replies
    • 3,571 views

  23. Brand New truck did not pass CA smog

    By kylant,
    • 12 replies
    • 680 views

  24. Power Tailgate Won’t Open

    By BruceP,   
    • 10 replies
    • 390 views

  25. Catalytic converter check engine light?

    By cr2256,
    • 3 replies
    • 213 views

  26. 2020 Denali won’t blow out any air from ac vents

    By Ross199617,
    • 1 reply
    • 193 views


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